Air
Conditioning: |
| Motors
cleaned, lubricated (if possible), inspected and tested.
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CAPACITORS tested:
-
Capacitors & motors
work together. Without a properly functioning capacitor the
motor can overheat or stop running. Usually the
capacitor will slowly loose its capacity over time, therefore
necessitating a periodic test to determine how much loss there
has been, if any. If the loss is greater than 10% the capacitor
should be replaced.
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CRANKCASE HEATER tested:
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RELAYS & CONTACTORS inspected & tested:
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SAFETY
CONTROLS inspected & tested:
- Safety
controls that do not function properly can cause other components
to fail or create unsafe conditions. Like anything
else in life, don't assume these safety devices are working unless
they are operationally checked periodically.
|
CONDENSER
COIL inspected:
- Dirty
condenser coils raise refrigerant pressure above the normal
operating range, making it harder for the compressor
to pump, thereby increasing your electrical costs and wear & tear
on the compressor.
|
EVAPORATOR
COIL inspected:
- Dirty
evaporator coils decrease capacity & efficiency.
Air flowing through the system first enters the air filter
and then passes through the evaporator coil. Because the
typical
fiberglass filter is only 7% efficient, over a period of time
dirt is deposited
on the coil surfaces, which can lead to several problems including
compressor failure.
|
|
BLOWER
WHEEL inspected:
- Dirty
blower wheels reduce airflow. Reduced airflow causes longer
operating time and increased cost. Again, most
fiberglass
filters are only 7% efficient, so the remaining 93% of dirt in
the air can collect on the evaporator coil and blower wheel.
This leads to several problems including compressor failure.
|
REFRIGERANT
CHARGE checked:
- A
low or high refrigerant charge can easily go unnoticed.
It will increase operating costs and lead to shorter compressor
life. This is a very common problem. An evaluation of new
homes
by APS showed an alarming 78% were not properly charged
with refrigerant.
Older homes can have a more significant loss of refrigerant.
Texas Power & Light found that a 23% undercharge of refrigerant could
result in a 52% efficiency loss! Texas A&M University
test results showed the SEER rating of a unit would decrease
from
9.6 to 8 with just a 10% undercharge!
|
THERMOSTAT
checked:
- Malfunctioning
thermostats can run equipment too long or short a time for
optimum operation and comfort. You can have
the best equipment in the world, but if you control it with a
problematic or improperly adjusted thermostat, you will not achieve
the potential
efficiency and comfort the equipment is capable of
|
AIR
FILTER:
- A restricted air filter reduces
airflow. This will waste energy and shorten the compressor's
life.
The most important & easiest
thing to do is replace the air filter often (once a month) and
use a throwaway polyester pleat type filter. Cost is about $3.
per filter (varies with size) but this type of filter is capable
of holding more dirt and is about four times more efficient that
the fiberglass throwaways.
|
CONDENSATE
DRAIN inspected:
- A
condensate drain line can become plugged with debris & algae,
which can cause expensive water damage.
|
TEMPERATURES & PRESSURES
checked:
- An accurate record & analysis of
your equipment's "vital
signs" can indicate potential problems. Trustworthy Services
keeps a history of your equipment.
|
UNIT
DISCONNECT inspected:
- An
overheated disconnect can fail prematurely.
|
UNIT
FUSES inspected:
- Old
or overheated fuses can fail and shut down your equipment.
|
UNIT
WIRING inspected and loose connections tightened:
- Loose
connections can easily lead to equipment outages.
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